USGS Streamgage 06809210
East Nishnabotna River near Atlantic, IA
East Nishnabotna River near Atlantic, IA is USGS streamgage 06809210, monitoring river discharge in hydrologic subbasin 10240003. It drains a watershed of about 436 square miles. Discharge records at this site go back to 1958. Typical flow runs near 210 cfs in July and 210.6 cfs in April, with the higher of the two arriving in April.
Gauge details
- Drainage area
- 436 sq mi
- Gauge elevation
- 1,132 ft
- Subbasin (HUC-8)
- 10240003
- Coordinates
- 41.346, -95.07686
- USGS site number
- 06809210
- Records begin
- 1958-07-02 (68 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 66 years of data), averaged within each month. These describe the historical normal range — they are not a forecast and not today's reading.
| Month | Low p10 | Typical p50 | High p90 | Range |
|---|---|---|---|---|
| January | 16.9 | 57.8 | 256.9 | |
| February | 24.2 | 94.7 | 472.3 | |
| March | 41.4 | 184.4 | 838.2 | |
| April | 45.3 | 210.6 | 831.8 | |
| May | 50.5 | 324.2 | 1,112.4 | |
| June | 62.4 | 326.5 | 1,302 | |
| July | 46.8 | 210 | 728.9 | |
| August | 29.8 | 105.8 | 400.2 | |
| September | 24.1 | 77.9 | 457.6 | |
| October | 23.3 | 78 | 506.5 | |
| November | 27.2 | 80.8 | 344.2 | |
| December | 18.7 | 66.2 | 290.8 |
All values in cubic feet per second (cfs).